ffmpeg can't be installed or set on Alpine

[eibex]

Which version of recognize are you using?

6.0.1

Enabled Modes

Object recognition, Face recognition, Video recognition

TensorFlow mode

Normal mode

Downstream App

Memories App

Which Nextcloud version do you have installed?

28.0.2

Which Operating system do you have installed?

Unraid Linux6.1.64

Which database are you running Nextcloud on?

Postgres 15

Which Docker container are you using to run Nextcloud? (if applicable)

28.0.2 (not AIO)

How much RAM does your server have?

64GB

What processor Architecture does your CPU have?

x86_64

Describe the Bug

The app cannot install ffmpeg when installing it.

Additional info:

• I have ffmpeg already installed for preview generation (installed via apt)
• I used to run Recognize before moving to Docker without issues
• /tmp is mapped to tmpfs

Expected Behavior

ffmpeg is installed and no errors are shown.

To Reproduce

Install recognize with the main docker container image.

Debug log

[recognize] Error: Failed to install ffmpeg: os.js:68
      throw new ERR_SYSTEM_ERROR(ctx);
      ^

SystemError [ERR_SYSTEM_ERROR]: A system error occurred: uv_os_homedir returned ENOENT (no such file or directory)
    at Object.<anonymous> (/var/www/html/custom_apps/recognize/node_modules/env-paths/index.js:5:20)
    at Module._compile (internal/modules/cjs/loader.js:1085:14)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1114:10)
    at Module.load (internal/modules/cjs/loader.js:950:32)
    at Function.Module._load (internal/modules/cjs/loader.js:790:12)
    at Module.require (internal/modules/cjs/loader.js:974:19)
    at require (internal/modules/cjs/helpers.js:93:18)
    at Object.<anonymous> (/var/www/html/custom_apps/recognize/node_modules/ffmpeg-static/install.js:7:18)
    at Module._compile (internal/modules/cjs/loader.js:1085:14)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1114:10) {
  code: 'ERR_SYSTEM_ERROR',
  info: {
    errno: -2,
    code: 'ENOENT',
    message: 'no such file or directory',
    syscall: 'uv_os_homedir'
  },
  errno: [Getter/Setter],
  syscall: [Getter/Setter]
}
	POST /settings/apps/enable
	from xxx

[github-actions]

Hello 👋

Thank you for taking the time to open this issue with recognize. I know it's frustrating when software
causes problems. You have made the right choice to come here and open an issue to make sure your problem gets looked at
and if possible solved.
I try to answer all issues and if possible fix all bugs here, but it sometimes takes a while until I get to it.
Until then, please be patient.
Note also that GitHub is a place where people meet to make software better together. Nobody here is under any obligation
to help you, solve your problems or deliver on any expectations or demands you may have, but if enough people come together we can
collaborate to make this software better. For everyone.
Thus, if you can, you could also look at other issues to see whether you can help other people with your knowledge
and experience. If you have coding experience it would also be awesome if you could step up to dive into the code and
try to fix the odd bug yourself. Everyone will be thankful for extra helping hands!
One last word: If you feel, at any point, like you need to vent, this is not the place for it; you can go to the forum,
to twitter or somewhere else. But this is a technical issue tracker, so please make sure to
focus on the tech and keep your opinions to yourself. (Also see our Code of Conduct. Really.)

I look forward to working with you on this issue
Cheers 💙

[marcelklehr]

Have you tried setting the ffmpeg path in the settings?

[eibex]

I can see options to set a custom Node.js path, but not a custom ffmpeg path

[eibex]

In the config.php file I can see that the Memories app found ffmpeg without issues at under /usr/bin/ffmpeg

I also found that Recognize somewhat works despite the error (classification run gets stuck mid way with thousands of files in queue for object, video, and face recognition).

[github-actions]

Hello 👋
This issue is waiting for a response by the original poster for 2 weeks. We cannot keep track of whether individual issues
have resolved themselves or still require attention without user interaction. We're thus adding the stale label to this issue to schedule
it for getting closed in 5 days time. If you believe this issue is still valid and should be fixed, you can add a comment
or remove the label to avoid it getting closed.

Cheers 💙

[eibex]

Not stale

[marcelklehr]

Ah, sorry, that was a different app with the ffmpeg path setting. Duly noted and confirmed

[marcelklehr]

ffmpeg doesn't support Alpine I think. In general recognize and alpine don't work well together.